nextjs-15

Server Actions in Next.js 15 handle form submissions and data mutations directly on the server. You define them within Server Components to execute secure backend logic without creating separate API endpoints.

Data fetching in Next.js 15 Server Components occurs directly on the server during render. You can implement efficient fetching strategies and stream dynamic content loading using Suspense boundaries.

Streaming with Suspense in Next.js progressively renders dynamic content. It wraps slow asynchronous data fetches, allowing the UI to display immediately and stream updated chunks as data resolves.

Middleware in Next.js intercepts incoming requests to control application routing and enhance security. It runs before a request completes, enabling access control and redirection based on specific criteria.

Yes, Route Handlers in the Next.js App Router build robust backend API functionalities. They provide a standardized way to create custom request endpoints handling various HTTP methods.

Next.js App Router conventions use a file-based routing system for layouts, loading states, and error handling. These specific files wrap page content to define shared UI structures and manage rendering failures.